1541 Format Routine Explained by Commodore History - The Oasis BBS Commodore History breaks down the 1541 Format Routine, showing why disk formatting takes so long on the Commodore 1541.

1541 Format Routine Explained by Commodore History
#Commodore64 #Commodore1541 #CommodoreHistory #RetroComputing #CBMSRC #FloppyDisk #MOS6502 #VintageComputing

theoasisbbs.com/1541-format-...

sim6502 v1.6 Brings a Full GUI to a 6502 Family Simulator - The Oasis BBS sim6502 v1.6 adds a full GUI, CLI monitor, and MCP support for 6502, 65C02, 65CE02, and 45GS02 development.

sim6502 v1.6 Brings a Full GUI to a 6502 Family Simulator
#sim6502 #MOS6502 #Commodore64 #MEGA65 #RetroComputing #AssemblyLanguage #VICII #OpenSource

theoasisbbs.com/sim6502-v1-6...

Original post on mastodon.social

Some people claim thar the 6502 is a RISC processor. It's not.

Hill I'll die on: The 6502 is about as unRISCy as a 4500 transistor 8-bit CPU can possibly be. It has over a dozen addressing modes, and is not orthogonal at all.

That says nothing about whether the 6502 is good or bad. In my […]

C64 Dev Machine Adds Scroller Demo in New Video - The Oasis BBS C64 Dev Machine adds a scroller demo, showing text, sprites, bitmap graphics, and SID music in a promising new build.

C64 Dev Machine Adds Scroller Demo in New Video
#Commodore64 #C64 #MOS6502 #RetroComputing #C64DevMachine #SID #GameDev #Polytricity

theoasisbbs.com/c64-dev-mach...

Regenerator 2000 Update - The Oasis BBS Regenerator 2000 Update 0.8.7 improves VICE debugging, adds auto-connect, and refines the UI for modern 6502 disassembly.

Regenerator 2000 Update 0.8.7 Adds Better VICE Debugging and Smarter UI
#Commodore64 #MOS6502 #Regenerator2000 #RetroComputing #Disassembler #VICE #Commodore #ReverseEngineering

theoasisbbs.com/regenerator-...

C128 vibe coding - The Oasis BBS C128 vibe coding comes alive as Chicken 64 uses AI to build a dual-screen Commodore 128 strategy game with real hardware challenges.

C128 Vibe Coding Shows AI Building a Real Commodore 128 Strategy Game
#Commodore128 #C128 #Chicken64 #RetroComputing #VibeCoding #MOS6502 #AssemblyLanguage #AICoding #Commodore #RetroGaming

theoasisbbs.com/c128-vibe-co...

C64 Line Drawing - The Oasis BBS C64 line drawing gets a deep dive as Quiss of Reflex explains Bresenham, faster pixel writes, and wild math ideas from Fjälldata 2026.

C64 Line Drawing: Quiss of Reflex Breaks Down Bresenham and Beyond at Fjälldata 2026
#Commodore64 #C64 #Demoscene #MOS6502 #Assembly #Bresenham #RetroComputing #Fjalldata #FairLight #GraphicsProgramming

theoasisbbs.com/c64-line-dra...

Meanwhile… I'm adding a new utility to "6502 Tools" for all you old-school Atari 8-bit coders out there. The "ATASCII Insert" Sublime Text plugin provides quick access to inverted and special characters in supported fonts like Atari Classic. #RetroCoding #Atari #MOS6502

I'm making steady progress in my quest to properly redo that game I wrote in 1983 using Atari BASIC + 6502…

"Snorky!" is an homage to Q*Bert that follows the logic that if hopping on a small pile of cubes makes Q*Bert fun then many more cubes should be even more fun!

#RetroCoding #Atari #MOS6502

BASIC string demo code.

Your #AtariBASIC tip of the day.

Numbers in AtariBASIC are always 6 byte floats! But you can use strings to store integer data and access it with PEEK and POKE.

Strings can also be cleverly manipulated to manipulate memory and even draw player-missile graphics.

#RetroCoding #Atari #MOS6502

X16 YModem Batch Speeds Up TexElec Serial Transfers - The Oasis BBS X16 YModem Batch lands in Xiphod’s demo, showing fast multi-file transfers over the TexElec 16550 serial link. Watch it work.

X16 YModem Batch Speeds Up TexElec Serial Transfers
#CommanderX16 #RetroComputing #YModem #BBS #Serial #HomebrewComputing #MOS6502 #8bit #TexElec

theoasisbbs.com/x16-ymodem-b...

C64 Demo Coding: Milasoft’s Pac-Man Scroller Tutorial, Part 2 - The Oasis BBS C64 demo coding gets practical in Milasoft’s Part 2: scroll reset, music in IRQ, color fader, sprite visualizer, and joystick speed.

C64 Demo Coding: Milasoft’s Pac-Man Scroller Tutorial, Part 2
#Commodore64 #C64 #MOS6502 #Assembly #Demoscene #RetroComputing #Chiptune #GameDev #Programming #Milasoft

theoasisbbs.com/c64-demo-cod...

Milasoft C64 Demo Build - The Oasis BBS Milasoft C64 demo build walks through 2x2 text, sprite ripping, IRQ timing, and a smooth scroller in C64 Studio.

Milasoft C64 Demo Build
#Commodore64 #C64 #MOS6502 #Assembly #C64Studio #Demoscene #RetroComputing #GameDev #PixelArt #Sprites

theoasisbbs.com/milasoft-c64...

Prog8 XVI Editor - The Oasis BBS Prog8 XVI editor returns in Part 2 as Brett Estrade demos new commands, safer file handling, and the push past 256 lines.

Prog8 XVI Editor: CommodoreSam Revisits Part 2 on Commander X16 and OtterX
#Prog8 #XVIEditor #CommanderX16 #OtterX #MOS6502 #RetroComputing #Vim #Vi #DevTools #HomebrewSoftware #8Bit

theoasisbbs.com/prog8-xvi-ed...

Picture of three blue handbooks, MOS 6502 programming manual, MOS 6502 hardware manual, and a (German) KIM-1 Handbuch

I got myself some reprints for some good feeling of nostalgia!
#8bit #mos6502

C64 Brain Returns - The Oasis BBS C64 Brain Returns with a new update on Commodore 64 machine language, finishing a long game project, and a faster rebuilt site.

C64 Brain Returns: A Fresh Start for Commodore 64 Machine Language
#Commodore64 #C64 #MOS6502 #Assembly #RetroComputing #Retrogaming #GameDev #Chiptune #Homebrew #Programming

theoasisbbs.com/c64-brain-re...

C64UX v0.7 Released - The Oasis BBS C64UX v0.7 Released adds login, color themes, and a proper boot sequence, polishing this Unix-style C64 shell.

C64UX v0.7 Released: Unix-inspired Shell and RAM Filesystem for the C64
#Commodore64 #C64 #C64UX #RetroComputing #MOS6502 #AssemblyLanguage #OpenSource #Homebrew #VintageComputing

theoasisbbs.com/c64ux-v0-7-r...

I've just released Regenerator 2000 v0.7.0 with MCP Server support.
I've tested it with Claude Code and Gemini CLI and got impressive results: multi-line comments, good labels,etc.

www.youtube.com/watch?v=_HW2...

#commodore64 #disassembly #mos6502

Overlapping IRQ Trick for C64 Demos - The Oasis BBS Learn the overlapping IRQ trick for C64 demos from Trident’s Fjälldata 2026 talk, shared on Fairlight TV Episode 143.

Overlapping IRQ Trick for C64 Demos
#Commodore64 #C64 #Demoscene #Fairlight #Fjalldata #RetroComputing #MOS6502 #Assembly #IRQ #RasterInterrupts #DemoCoding #Chiptune

theoasisbbs.com/overlapping-...

C64 8x8 Scroller: Milasoft’s 6502 Text Scroll Tutorial - The Oasis BBS Learn the C64 8x8 scroller with Milasoft, from a BASIC stub to smooth raster scroll using custom charsets and zero page pointers.

C64 8x8 Scroller: Milasoft’s 6502 Text Scroll Tutorial
#Commodore64 #C64 #MOS6502 #Assembly #RetroComputing #C64Studio #ChiptuneAdjacent #Demoscene #VintageComputing

theoasisbbs.com/c64-8x8-scro...

Vintage Programming Language - The Oasis BBS Vintage programming language update: Modern Retro Dev shares a new retro-friendly compiler with RPN math, pointers, and platform targets.

Vintage Programming Language: Modern Retro Dev’s New Compiler Experiment
#RetroComputing #CommanderX16 #Foenix #F256K #MOS6502 #GameDev #CompilerDev #ProgrammingLanguages #HomebrewComputing

theoasisbbs.com/vintage-prog...

Animated C64 charsets - The Oasis BBS Animated C64 charsets make games pop. Milasoft shows UltraFont, C64 Studio tricks, and smooth FLD-style raster bars.

Animated C64 Charsets: Milasoft’s UltraFont and Smooth Raster Tricks
#Commodore64 #C64 #MOS6502 #Assembly #RetroComputing #Demoscene #GameDev #Chiptune #PixelArt #C64Studio

theoasisbbs.com/animated-c64...

Gators N Snakes: Typing a Swampy Ahoy! Classic on the C64 - The Oasis BBS Gators N Snakes gets typed in from Ahoy! Aug 1985, debugged with Bug Repellent, then played as a tense Frogger-style challenge.

Gators N Snakes: Typing a Swampy Ahoy! Classic on the C64
#Commodore64 #C64 #RetroComputing #TypeIn #AhoyMagazine #BASIC #MOS6502 #VintageGames #GameDev #OldSchoolGaming

theoasisbbs.com/gators-n-sna...

C64 Sprite Pointers - The Oasis BBS C64 sprite pointers made simple. Milasoft shows charset banking, $D018 setup, and smooth sprite moves with $D010 MSB.

C64 Sprite Pointers: Character Sets and Sprite Setup in Milasoft’s Machine Language Lesson
#Commodore64 #C64 #MOS6502 #MOS6510 #Assembly #MachineLanguage #RetroComputing #GameDev #VICII #Sprites #Demoscene #C64Studio

theoasisbbs.com/c64-sprite-p...

1541 BASIC Computer Part 2 - The Oasis BBS 1541 BASIC Computer Part 2 restores disk I/O and runs Commodore BASIC on a 1541, controlled from a terminal over IEC.

1541 BASIC Computer Part 2: Turning a 1541 Disk Drive Into a Standalone Machine
#Commodore64 #Commodore1541 #Retrocomputing #MOS6502 #KIM1 #CommodoreBASIC #IEC #RS232 #EPROM #VintageComputing

theoasisbbs.com/1541-basic-c...

#MOS6502 C=

youtu.be/fWqBmmPQP40

C64 Raster Chaining - The Oasis BBS Learn C64 Raster Chaining with Milasoft: set IRQ vectors, chain raster lines, draw smooth bars, and build a pixel scroll. Watch the video.

C64 Raster Chaining: Smooth Scrolling and Rainbow Bars in 6502 Assembly
#Commodore64 #C64 #MOS6502 #Assembly #DemoScene #RasterBars #SmoothScroll #RetroComputing #C64Studio

theoasisbbs.com/c64-raster-c...

Idun Ultimate Demo - The Oasis BBS Idun Ultimate Demo highlights full C64 Ultimate support, plus Linux shell tools, on-cart building, and fast app launching for C64 and C128.

Idun Ultimate Demo Shows C64 Ultimate Support and a Modern Linux Workflow
#IdunCartridge #C64Ultimate #Commodore64 #Commodore128 #RetroComputing #MOS6502 #Lua #Python #Linux #HomebrewComputing #VintageComputing

theoasisbbs.com/idun-ultimat...

Draconus tune ripping - The Oasis BBS Milasoft explains Draconus tune ripping, from monitor basics to IRQ music playback, then builds a compact 9-tune player.

Draconus Tune Ripping: Milasoft’s No-Nonsense Guide to Pulling 9 C64 Tracks
#Commodore64 #C64 #SID #Chiptune #RetroComputing #GameAudio #Assembly #MOS6502 #Emulation #Draconus

theoasisbbs.com/draconus-tun...

VERA Addressing Trick - The Oasis BBS Learn the VERA addressing trick on Commander X16: dual pointers, stride auto step, and IRQ-safe register saves. Watch Lupe Darksnout.

VERA Addressing Trick: Lupe Darksnout Flips the Commander X16 Display
#CommanderX16 #VERA #RetroComputing #MOS6502 #65C02 #AssemblyLanguage #GameDev #Homebrew #RetroDev #VRAM

theoasisbbs.com/vera-address...